JPH0445181A - Composition for water-repellent coating and heat exchanger coated with the same composition - Google Patents

Composition for water-repellent coating and heat exchanger coated with the same composition

Info

Publication number
JPH0445181A
JPH0445181A JP15211890A JP15211890A JPH0445181A JP H0445181 A JPH0445181 A JP H0445181A JP 15211890 A JP15211890 A JP 15211890A JP 15211890 A JP15211890 A JP 15211890A JP H0445181 A JPH0445181 A JP H0445181A
Authority
JP
Japan
Prior art keywords
water
heat exchanger
composition
water repellency
fine particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15211890A
Other languages
Japanese (ja)
Other versions
JP2584109B2 (en
Inventor
Akiko Iwamoto
岩本 明子
Yoshiyuki Tsuda
津田 善之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP2152118A priority Critical patent/JP2584109B2/en
Publication of JPH0445181A publication Critical patent/JPH0445181A/en
Application granted granted Critical
Publication of JP2584109B2 publication Critical patent/JP2584109B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To obtain the title composition useful for treating surface of heat exchanger, having excellent film-forming properties, providing a film showing high film strength and water repellency, comprising a solution containing a specific silicone-based resin compound having a three-dimensional crosslinked material and a specific R/Si ratio and inorganic fine particles. CONSTITUTION:The objective composition comprising (A) a solution containing a silicone-based resin compound having a three-dimensional crosslinked material shown by formula I and formula II (R is methyl or phenyl) and <1.7 R/Si ratio and (B) inorganic filler particles having the surface preferably subjected to hydrophobic treatment. When the composition is applied to fin materials for heat exchanger to constitute a heat exchanger, contact surface between the surface of the fin material and water drops is lessened and water repellency is raised by fine unevenness by the particles besides water repellency effects of the crosslinked material.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、撥水性を付与する目的で基材表面にコーティ
ングするだめの組成物及び、前記組成物を塗布した熱交
換器に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a composition for coating the surface of a substrate for the purpose of imparting water repellency, and a heat exchanger coated with the composition.

従来の技術 シリコーン系または、フッ素系樹脂化合物は、優れた撥
水性、潤滑性などを有しその特性を活かすためのコ〜テ
ィ/グ材料9表面処理剤として多くの分野で、実用化さ
れている。例えば、空気調和様の熱交換器の表面処理と
しても有効である。
Conventional technology Silicone-based or fluorine-based resin compounds have excellent water repellency and lubricity, and have been put to practical use in many fields as surface treatment agents for coating materials to take advantage of these properties. There is. For example, it is effective as a surface treatment for heat exchangers for air conditioners.

そして、空気調和機における空気熱源ヒートポンプ式空
気調和機(以下、単にヒートポンプと呼ぶ)のしめる割
合は急増してきており、家庭用ルームエアコン、業務用
ルームエアコン等については、半数以上を占めている。
The proportion of air-source heat pump type air conditioners (hereinafter simply referred to as heat pumps) among air conditioners has been rapidly increasing, and they now account for more than half of all household room air conditioners, commercial room air conditioners, etc.

又、これらヒートポンプに用いられる熱交換器の大部分
は、アルミフィンと、またこれに直行する冷媒管から構
成されているフィンチューブ型熱交換器である。ヒート
ポンプにおいて、冷房時には室内側熱交換器のフィン表
面に水分の凝縮が起こり、フィン間における凝縮水のブ
リッジ現象により、熱交換器通過風量の低下を招き、ひ
いては、冷房能力の低下の原因となる。一方、暖房時に
は、室外側熱交換器において、前述した冷房時、室内側
熱交換器と同様な現象が起こる。熱交換器に、着霜した
場合は、通風抵抗が増加し、暖房能力の低下の原因とな
り、更に進むと、着霜によるフィンの目詰まりを生じ、
その場合暖房運転を一時停止し、除霜を行なう必要があ
るため、暖房の快適性を損なう原因にもなる。したがっ
て前記冷房能力、暖房能力の低下を減少させるために及
び、暖房時における、室外側熱交換器の着霜を減少し、
除霜回数を減らし、快適性を向上させるためには、室内
機及び室外機の熱交換器のフィン表面の凝縮水を常に取
り除けば、良いわけである。その方法としてフィン表面
を撥水化して凝縮水を転がり落とす方法があり、実開昭
48−11414号公報、実開昭51−15261号公
報で提案されているような4フッ化エチレン樹脂、塩化
37ソ化エチレン樹脂などのコーティングが知られてい
る。
Furthermore, most of the heat exchangers used in these heat pumps are fin-tube heat exchangers that are composed of aluminum fins and refrigerant pipes that run perpendicularly to the aluminum fins. In a heat pump, during cooling, moisture condenses on the fin surface of the indoor heat exchanger, and the bridging phenomenon of condensed water between the fins causes a decrease in the air flow passing through the heat exchanger, which in turn causes a decrease in cooling capacity. . On the other hand, during heating, the same phenomenon occurs in the outdoor heat exchanger as in the indoor heat exchanger during cooling, as described above. If frost forms on the heat exchanger, ventilation resistance will increase, causing a reduction in heating capacity, and if the heat exchanger continues to grow, the fins will become clogged due to frost formation.
In this case, it is necessary to temporarily stop the heating operation and defrost the air, which may impair the comfort of heating. Therefore, in order to reduce the reduction in the cooling capacity and heating capacity, and to reduce frost formation on the outdoor heat exchanger during heating,
In order to reduce the number of times of defrosting and improve comfort, it is better to constantly remove condensed water from the fin surfaces of the heat exchangers of indoor and outdoor units. One way to do this is to make the fin surface water repellent and roll off the condensed water. Coatings such as 37-isoethylene resin are known.

発明が解決しようとする課題 前記撥水性に優れた樹脂を塗布したフィン材表面におい
ては、直径2■以上の比較的大きな凝縮水をフィン表面
から転がり落とすことが可能であり、熱交換器用フィン
材として、ある程度の効果が期待できる。しかし、最近
の熱交換器は、高能力化を目的とし、フィン総表面積を
増やすためにフィン間隔が狭くなる傾向にある。現在の
熱交換器のフィン間隔は、約2〜3酊が一般的でありこ
れからますます狭められていくと考えられる。そこで、
前記の撥水性に優れた樹脂を塗布する方法では、直径1
ff程度の微細な水滴をフィン表面から落とすことはで
きない。そこで、フィン表面に残存した水滴が、フィン
間に溜るため、通風抵抗になったり、その−1ま氷結し
霜となるなどその撥水効果は不十分であった。したがっ
て、ヒートポンプの冷暖房能力を低下させないようフィ
ン表面の凝縮水を常に取り除くことが可能な高性能な熱
交換器用フィン材が望まれ、より高い撥水性を付与しう
るコーティング材料が必要となる。
Problems to be Solved by the Invention On the surface of the fin material coated with the resin with excellent water repellency, it is possible to roll off relatively large condensed water with a diameter of 2 mm or more from the fin surface. As such, some effect can be expected. However, in recent heat exchangers, the fin spacing tends to become narrower in order to increase the total fin surface area in order to increase the capacity. The fin spacing of current heat exchangers is generally about 2 to 3 mm, and is expected to become narrower in the future. Therefore,
In the above-mentioned method of applying resin with excellent water repellency, a diameter of 1
Water droplets as small as ff cannot be dropped from the fin surface. Therefore, the water droplets remaining on the fin surfaces accumulate between the fins, causing ventilation resistance, or freezing to form frost, resulting in insufficient water repellency. Therefore, a high-performance heat exchanger fin material that can constantly remove condensed water from the fin surface so as not to reduce the heating and cooling capacity of the heat pump is desired, and a coating material that can provide higher water repellency is required.

課題を解決するための手段 この目的を達成するために本発明の撥水性コーティング
用組成物は、3次元架橋体を有し、R/Si比が1.7
未満であるシリコーン系樹脂化合物を含む溶液と、前記
溶液中に分散され、表面を疎水化処理した無機系微粒子
とから構成してなるものである。
Means for Solving the Problems To achieve this object, the water-repellent coating composition of the present invention has a three-dimensional crosslinked body and has an R/Si ratio of 1.7.
It is composed of a solution containing a silicone-based resin compound of less than or equal to 10%, and inorganic fine particles that are dispersed in the solution and whose surfaces have been subjected to hydrophobization treatment.

また、板状フィンの表面にシリコーン系樹脂脆化合物3
次元架橋体を含む溶液と、前記溶液中に分散され、塗嘆
硬化後表面に微細凹凸を付与しうる無機又は有機系微粒
子とからなる撥水性コーティング用組成物を塗布した熱
交換器を構成するものである。
In addition, a silicone resin brittle compound 3 is added to the surface of the plate-like fin.
A heat exchanger coated with a water-repellent coating composition consisting of a solution containing a dimensional crosslinker and inorganic or organic fine particles dispersed in the solution and capable of imparting fine irregularities to the surface after coating and curing is constituted. It is something.

作   用 上記の構成の撥水性コーティング用組成物を施した基材
表面は、シリコーン系樹脂化合物3次元架橋体の撥水効
果に加え、無機微粒子により形成された表面の微細な凹
凸により、表面と水滴との接触面積が小さくなり、撥水
性がいちじるし2く高くなる。
Function: The surface of the substrate coated with the water-repellent coating composition having the above structure has a water-repellent effect due to the three-dimensional cross-linked silicone resin compound, as well as the fine irregularities on the surface formed by the inorganic fine particles. The contact area with water droplets becomes smaller, and water repellency becomes significantly higher.

実施例 以下本発明の一実施例について説明する。Example An embodiment of the present invention will be described below.

実施例1〜3及び、比較例4,6.7は、3次元架橋体
を構成単位とし基本構成単位中のR,/Siを変更した
各種シリコーン系樹脂を含むコーティング剤に対し、表
面を撥水化処理した無機系粉体あるいは、疎水化処理を
していない無機系粉体をシリコーン樹脂コーティング剤
中の固形分に対して、10wt%、あるいは7.5wt
%添加して、常温で攪拌分赦し、コーティング組成物を
作成し、厚さ0.5flのアルミニウム板に浸漬塗布し
、150℃の熱風乾燥炉中で30分間乾燥硬化したもの
である。また、比較例5は、3次元架橋体を構成単位と
しR/Si比が1.6のシリコーン系樹脂を含むコーテ
ィング剤を同様に、厚さ0 、51’lIのアルミニウ
ム板に浸漬塗布し、150℃の熱風乾燥炉中で30分間
乾燥硬化したものである。さらに比較例8は、3次元架
橋体を有さない単量体シリコーン系樹脂を含むコーティ
ング剤に対し、表面を疎水化処理した無機系粉体をシリ
コーン樹脂コーティング剤中の固形分に対して、10w
t%、あるいは7.5wt%添加して、同様に厚さ0 
、51ffのアルミ−ラム板に浸漬塗布し、150℃の
熱風乾燥炉中で3o分間乾燥硬化したものである。膜強
度の評価は、JIS:に−5400による鉛筆引っ掻き
試験を行った。又、撥水性効果については水に対する接
触角を測定することにより評価した。尚、鉛筆引っ掻き
試験とは、塗膜の引っ掻き抵抗性を鉛筆の芯の硬さを変
えた時の塗膜の割れで調べるものであり、鉛筆の硬度記
号で表わす。又、水に対する接触角とは、図に示すよう
に、試料2表面に形成した水滴3と試料2表面が作る角
度θで表わされ、接触角θが大きい程、撥水性が高いと
いえる。水に対する接触角は、協和界面科学製コンタク
トアングルメータDA−T型で測定した。
In Examples 1 to 3 and Comparative Examples 4 and 6.7, the surface was repelled for coating agents containing various silicone resins in which the three-dimensional crosslinked body was a constituent unit and R and /Si in the basic constituent units were changed. Hydrogenated inorganic powder or non-hydrophobicized inorganic powder at 10wt% or 7.5wt% of the solid content in the silicone resin coating agent.
% and left to stir at room temperature to prepare a coating composition, which was applied by dip coating onto an aluminum plate with a thickness of 0.5 fl, and dried and cured for 30 minutes in a hot air drying oven at 150°C. In addition, in Comparative Example 5, a coating agent containing a silicone resin having a three-dimensional crosslinked body as a constituent unit and an R/Si ratio of 1.6 was similarly dip-coated onto an aluminum plate with a thickness of 0 and 51'lI, It was dried and cured for 30 minutes in a hot air drying oven at 150°C. Furthermore, in Comparative Example 8, for a coating agent containing a monomeric silicone resin without a three-dimensional crosslinked body, inorganic powder whose surface was hydrophobized was added to the solid content of the silicone resin coating agent. 10w
By adding t% or 7.5wt%, the thickness is 0.
, 51ff aluminum ram plate by dip coating, and dried and hardened in a hot air drying oven at 150° C. for 30 minutes. The film strength was evaluated by a pencil scratch test according to JIS: -5400. Furthermore, the water repellency effect was evaluated by measuring the contact angle with water. The pencil scratch test is a test to examine the scratch resistance of a paint film based on cracks in the paint film when the hardness of a pencil lead is changed, and is expressed by a pencil hardness symbol. Further, as shown in the figure, the contact angle with respect to water is expressed by the angle θ formed by the water droplet 3 formed on the surface of the sample 2 and the surface of the sample 2, and it can be said that the larger the contact angle θ, the higher the water repellency. The contact angle with respect to water was measured using a contact angle meter DA-T model manufactured by Kyowa Interface Science.

これらの評価結果を表に示す。表でも判るように、実施
例1〜3は、シリカ微粒子を添加していない比較例5と
比較すると、接触角が大幅に向上している。又、比較例
4の表面を疎水化処理していないシリカ微粒子を添加し
た場合よりも撥水性が高く、成膜性がよい。更に、R/
Si比が1.7以上であるシリコーン樹脂に無機微粒子
を添加した場合は、比較例6,7からもわかるように撥
水性は実施例1〜3と同様に著しく向上するが塗膜強度
が非常に弱く、実用化には問題がある。比較例8の3次
元架橋体を有さない単量体シリコーン系樹脂化合物をふ
くむコーティング剤を塗布したサンプリングも、シリカ
微粒子の添加により、実施例1〜3と同様に撥水性向上
効果は認められるも表−塗膜の種類と水接触角、塗膜状
態の関係のの、膜強度が著しく弱く、実用化は困難であ
る。
The results of these evaluations are shown in the table. As can be seen from the table, the contact angles of Examples 1 to 3 are significantly improved compared to Comparative Example 5 in which no silica particles were added. Further, the water repellency is higher and the film forming property is better than that of Comparative Example 4 in which silica fine particles whose surfaces have not been subjected to hydrophobization treatment are added. Furthermore, R/
When inorganic fine particles are added to a silicone resin with a Si ratio of 1.7 or more, as can be seen from Comparative Examples 6 and 7, the water repellency is significantly improved as in Examples 1 to 3, but the coating film strength is extremely low. , and there are problems in practical application. In the sample coated with a coating agent containing a monomeric silicone resin compound without a three-dimensional crosslinked product in Comparative Example 8, the same water repellency improvement effect as in Examples 1 to 3 was observed due to the addition of silica fine particles. However, due to the relationship between the type of coating film, water contact angle, and coating condition, the film strength is extremely weak, making it difficult to put it into practical use.

すなわち、本実施例において、大幅に撥水性が向上させ
ることができると共に、膜強度と成膜性を向−卜させる
ことができた。
That is, in this example, the water repellency could be significantly improved, and the film strength and film formability could be improved.

これは、撥水性樹脂に微細な粉体を添加すると、撥水性
樹脂により、表面が撥水性になっていることに加えて、
微小な粉体の微細凹凸により、液滴の接触面積が小さく
なり、γ夜滴とフィン表面の付着力が大幅に低下し、撥
水性が高くなる(モルフォロシカル効果)と考えられる
。又、表面を疎水化処理した無機微粒子を添加すると表
面処理をしていない微粒子を添加した場合に比べて分散
性が非常によくなり成膜性が向上すると考えられる。
This is because when fine powder is added to the water-repellent resin, the surface becomes water-repellent due to the water-repellent resin.
It is thought that the fine irregularities of the fine powder reduce the contact area of the droplets, significantly reducing the adhesion force between the γ droplets and the fin surface, and increasing the water repellency (morphological effect). It is also believed that when inorganic fine particles whose surfaces have been subjected to hydrophobization treatment are added, the dispersibility is much better than when fine particles whose surfaces have not been treated are added, and film-forming properties are improved.

更に、3次元架橋体であるシリコーン系樹脂化合物を用
いると樹脂化合物同志の架橋が進み、3次元網目構造と
なり、優れた強度を有する塗膜となる。一方、3次元架
橋体を有さない単量体シリコーン系樹脂は、構成単位間
の結合が弱く強固な塗膜とはならない。
Furthermore, when a silicone resin compound that is a three-dimensional crosslinked product is used, crosslinking between the resin compounds progresses, forming a three-dimensional network structure, resulting in a coating film with excellent strength. On the other hand, monomeric silicone resins that do not have a three-dimensional crosslinker have weak bonds between constituent units and do not form a strong coating film.

発明の効果 以上のように本発明では、撥水性コーティング用組成物
は、3次元架橋体を構成単位とし、R/S i比が1.
7未満であるシリコーン系樹脂化合物を含む溶液と、前
記溶液中に分散され、表面が疎水化処理された無機系微
粒子とから構成されたものであり、この撥水性コーティ
ング用組成物を塗布・乾燥硬化することにより成膜性に
優れかつ、非常に高い膜強度と撥水性を示す膿が得られ
る。この撥水性コーティング用組成物を熱交換器用フィ
ン材に塗布し、熱交換器を構成した場合、フィン間隔が
2ff程度と狭い場合でも、フィン表面に凝縮した水滴
を、転がシ落とすために有効な性能を有する。したがっ
て、ヒートポンプエアコンの熱交換器の着霜によるフィ
ン間の目詰まシを遅れさせることにより、ヒートポンプ
として、冷房能力。
Effects of the Invention As described above, in the present invention, the water-repellent coating composition has a three-dimensional crosslinked body as a constituent unit, and has an R/Si ratio of 1.
It is composed of a solution containing a silicone resin compound having a molecular weight of less than 7, and inorganic fine particles that are dispersed in the solution and whose surfaces have been subjected to a hydrophobic treatment.This water-repellent coating composition is applied and dried. By curing, pus can be obtained that has excellent film-forming properties and exhibits extremely high film strength and water repellency. When this water-repellent coating composition is applied to the fin material for a heat exchanger to construct a heat exchanger, it is effective for rolling off water droplets condensed on the fin surface even when the fin spacing is as narrow as about 2ff. It has excellent performance. Therefore, by delaying clogging between the fins due to frost formation on the heat exchanger of a heat pump air conditioner, the cooling capacity of the heat pump air conditioner can be improved.

暖房能力の低下を減少させるとともに、暖房時室外機熱
交換器の除霜間隔を延長することができ、快適性を向上
させることが可能である。
In addition to reducing the reduction in heating capacity, it is possible to extend the defrosting interval of the outdoor unit heat exchanger during heating, and it is possible to improve comfort.

【図面の簡単な説明】[Brief explanation of the drawing]

図は接触角について説明した図である。 1・・・・・・基材、 2・・・・・・試料、 ・・・・水滴、 接触角。 The figure is a diagram explaining the contact angle. 1...Base material, 2... Sample, ...Water drops, contact angle.

Claims (3)

【特許請求の範囲】[Claims] (1)下記一般式( I )の2種を構成単位とした3次
元架橋体を有し、( I )式中のR/Si比が1.7未
満であるシリコーン系樹脂化合物を含む溶液と無機微粒
子とからなる撥水性コーティング用組成物。 ▲数式、化学式、表等があります▼( I ) R:メチル基またはフェニル基
(1) A solution containing a silicone resin compound having a three-dimensional crosslinked product having two types of the following general formula (I) as constituent units and having an R/Si ratio of less than 1.7 in the formula (I). A water-repellent coating composition comprising inorganic fine particles. ▲There are mathematical formulas, chemical formulas, tables, etc.▼(I) R: Methyl group or phenyl group
(2)添加する無機微粒子の表面を疎水化処理したこと
を特徴とする請求項1記載の撥水性コーティング用組成
物。
(2) The water-repellent coating composition according to claim 1, wherein the surface of the inorganic fine particles to be added has been subjected to a hydrophobic treatment.
(3)一定間隔で多数平行に並べられ、その間を気流が
流動する板状フィンと、この板状フィンに直角に挿通さ
れた伝熱管とからなり、前記板状フィンに下記一般式(
I )の2種を構成単位とした3次元架橋体を有し、(
I )式中のR/Si比が1.7未満であるシリコーン
系樹脂化合物を含む溶液と無機微粒子とからなる組成物
を塗布した熱交換器。 ▲数式、化学式、表等があります▼( I ) R:メチル基またはフェニル基
(3) It consists of a large number of plate-shaped fins arranged in parallel at regular intervals, through which air flows, and a heat transfer tube inserted at right angles to the plate-shaped fins, and the plate-shaped fins are connected to the plate-shaped fins by the following general formula (
It has a three-dimensional crosslinked body with two types of (I) as structural units, and (
I) A heat exchanger coated with a composition comprising a solution containing a silicone resin compound having an R/Si ratio of less than 1.7 and inorganic fine particles. ▲There are mathematical formulas, chemical formulas, tables, etc.▼(I) R: Methyl group or phenyl group
JP2152118A 1990-06-11 1990-06-11 Paint for water-repellent coating and heat exchanger coated with the paint Expired - Lifetime JP2584109B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2152118A JP2584109B2 (en) 1990-06-11 1990-06-11 Paint for water-repellent coating and heat exchanger coated with the paint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2152118A JP2584109B2 (en) 1990-06-11 1990-06-11 Paint for water-repellent coating and heat exchanger coated with the paint

Publications (2)

Publication Number Publication Date
JPH0445181A true JPH0445181A (en) 1992-02-14
JP2584109B2 JP2584109B2 (en) 1997-02-19

Family

ID=15533456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2152118A Expired - Lifetime JP2584109B2 (en) 1990-06-11 1990-06-11 Paint for water-repellent coating and heat exchanger coated with the paint

Country Status (1)

Country Link
JP (1) JP2584109B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001036190A1 (en) * 1999-11-16 2001-05-25 Center For Advanced Science And Technology Incubation, Ltd. Structure and film having surface exhibiting high hardness and providing high slippage of water, and method for preparation thereof
US6255373B1 (en) * 1998-07-06 2001-07-03 Dow Corning Toray Silicone Company, Ltd. Curable silicone resin composition
JP2008101197A (en) * 2006-09-19 2008-05-01 Keio Gijuku Highly water-repellent composition
JP2009262402A (en) * 2008-04-24 2009-11-12 Nippon Steel Corp Surface-treated metal, method for producing the same, and metal surface treatment liquid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101230504B1 (en) * 2010-08-31 2013-02-06 한국생산기술연구원 Metal-Polymer Complex Cold Storage Module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114900A (en) * 1974-07-25 1976-02-05 Degussa Bisaibunkatsujokeisan narabini keisanenososuiseikasuruhoho
JPS5334831A (en) * 1976-09-14 1978-03-31 Tokuyama Soda Co Ltd Coating composition
JPS58145614A (en) * 1982-02-23 1983-08-30 Shokubai Kasei Kogyo Kk Powdery silica dispersible uniformly into organic solvent and its preparation
JPS59170160A (en) * 1983-03-18 1984-09-26 Kansai Paint Co Ltd Coating compound composition for preventing traces of patch of paper
JPS63184385U (en) * 1987-05-15 1988-11-28
JPH01280546A (en) * 1988-05-06 1989-11-10 Nisshin Steel Co Ltd Black silicon resin coated metallic plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114900A (en) * 1974-07-25 1976-02-05 Degussa Bisaibunkatsujokeisan narabini keisanenososuiseikasuruhoho
JPS5334831A (en) * 1976-09-14 1978-03-31 Tokuyama Soda Co Ltd Coating composition
JPS58145614A (en) * 1982-02-23 1983-08-30 Shokubai Kasei Kogyo Kk Powdery silica dispersible uniformly into organic solvent and its preparation
JPS59170160A (en) * 1983-03-18 1984-09-26 Kansai Paint Co Ltd Coating compound composition for preventing traces of patch of paper
JPS63184385U (en) * 1987-05-15 1988-11-28
JPH01280546A (en) * 1988-05-06 1989-11-10 Nisshin Steel Co Ltd Black silicon resin coated metallic plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6255373B1 (en) * 1998-07-06 2001-07-03 Dow Corning Toray Silicone Company, Ltd. Curable silicone resin composition
WO2001036190A1 (en) * 1999-11-16 2001-05-25 Center For Advanced Science And Technology Incubation, Ltd. Structure and film having surface exhibiting high hardness and providing high slippage of water, and method for preparation thereof
JP2008101197A (en) * 2006-09-19 2008-05-01 Keio Gijuku Highly water-repellent composition
JP2009262402A (en) * 2008-04-24 2009-11-12 Nippon Steel Corp Surface-treated metal, method for producing the same, and metal surface treatment liquid

Also Published As

Publication number Publication date
JP2584109B2 (en) 1997-02-19

Similar Documents

Publication Publication Date Title
JPH0493597A (en) Water repellent coating composition and heat exchanger coated with water repellant coating composition
JPH03259975A (en) Water-repellent coating composition and heat exchanger coated therewith
KR940007204B1 (en) Heat exchanger
JPS6261078B2 (en)
JP2011514392A (en) Anti-icing frost paint and method of use
JPH0445181A (en) Composition for water-repellent coating and heat exchanger coated with the same composition
JP2834228B2 (en) Water repellent coating composition and heat exchanger using the water repellent coating composition
JPH06300482A (en) Heat exchanger
JPH03244996A (en) Water-repellent coating composition and heat exchanger using same
JPH03244680A (en) Water-repellent coating composition and heat exchanger using water repellent-coating composition
JP2507119B2 (en) Water-repellent coating composition and heat exchanger coated with the water-repellent coating composition
JPH05222339A (en) Water-repellent coating composition and heat exchanger coated with water-repellent coating composition
JP2803798B2 (en) Heat exchanger
JP3274044B2 (en) Surface treated fin material for heat exchanger and method for producing the same
JPH03251693A (en) Composition for water repellent coating and heat exchanger employing composition for water repellent coating
JPH04178472A (en) Composition for water-repelling coating and heat-exchanger coated with composition for water-repelling coating
JP3225793B2 (en) Highly hydrophilic paint
JPH08285491A (en) Surface treated aluminum fin material
JPH05117637A (en) Water-repellent coating composition and heat exchanger coated with water-repellent coating composition
JPH05223481A (en) Material of fin for heat exchanger
JPH0719776A (en) Aluminum-containing metal composite for heat exchanger
JPH05115845A (en) Water repellent coating composition and heat exchanger coated with the same and coating method therefor
JP2003336986A (en) Heat exchanger for air conditioning and manufacturing method therefor
CN115507570B (en) Aluminum fin material
JPH03251692A (en) Composition for water repellent coating and heat exchanger coated with composition for water repellent coating